Need help fixing low resolution with SyncMaster 780NW(monitor)

Asked by Benjamin

Hi!

I am running updated Ubuntu 9.10 and can't get any resolution bigger than 800x600. I have tried editing xrandr, creating a 1280x800 mode, but this just added a graphics mode to the "Display" menu, which didn't work. The error message displayed when choosing this mode was something like "This mode is not supported", which can't be, because I have a dual boot with windows and it works there. I have also tried a variety of methods proposed in other forums and none worked: I tried editing xorg.conf, but this file was empty.

Regards,
Benjamin.

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peter (peter-neuweiler) said :
#1

Try the following. Maybe it helps.

1: Copy the file /etc/X11/xorg.conf to /etc/X11/xorg.conf.bak
2: In a Terminal enter sudo gedit /etc/X11/xorg.conf
3: Have a look at the screen section (the sub section is important)

Section "Screen"
 Identifier "Default Screen"
 Device "nVidia Corporation NV5M64 [RIVA TNT2 Model 64/Model 64 Pro]"
 Monitor "Generic Monitor"
 DefaultDepth 24
        SubSection "Display"
                   Modes "1280x800"
        EndSubSection
EndSection

4: Save the file
5: Restart the system

The update of the file shouldn't take more than 15 minutes – otherwise you're going to loose the root privileges and you wouldn't be able to save it.

Hope it helps.
Peter

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Tom (tom6) said :
#2

Hi :)

So, get to a command-line
https://help.ubuntu.com/community/UsingTheTerminal#Starting%20a%20Terminal
and then try these commands

sudo cp /etc/X11/xorg.conf /etc/X11/xorg.conf.300510

i prefer using a date-stamp rather than just ".bak" in order to help me find the right one in the future. The "cp" command needs to be "suddoed" because it is in a system folder and is a system file. It will ask for your normal user password (the one you login with) NOT your SuperUser/Root one, and sudo gives no stars as you type. Now try

gksudo gedit /etc/X11/xorg.conf

The gksudo is much the same as sudo but is better for opening a gui. The 15min time limit might apply here so i am not sure if you would be prompted to re-enter your password. While editing the xorg.conf you don't have to worry about a time limit. There isn't one. Since you opened the xorg.conf with SuperUser privileges you should have no trouble saving it. The 15minute rule is meant to allow you to use several "sudoed" commands together without constantly having to enter your password because it would be annoying to have to keep typing it.

Since this answer is really only a modified version of Peter's answer and i had no idea how to go about solving this one you will find that his answer has a button "click to mark this problem solved" whereas mine doesn't have that button at all.

Good luck and regards from
Tom :)

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Benjamin (bbenja) said :
#3

Hi guys!

I do not have a conf.xorg file in the etc/X11 directory. The only thing similar to "xorg.conf" ( which I looked for in the file search) is a .zip file in the usr/bin directory, which contains a file named "xorg.conf.5". I unzipped it in the etc/X11 directory. When I opened it I could not find a subsection with screen modes, and before altering it I rather have your opinion.

Regards,
Benjamin.

Revision history for this message
Tom (tom6) said :
#4

Hi :)

Sorry to hear that. The stuff that used to be in the xorg.conf has all been pulled into kernel modules in 10.04 and obviously in 9.10 too. For earlier releases it gave us a really handy way of messing around with the various input and output devices such as keyboard, mouse & crucially the monitor. I never really got to grips with it and don't know the new way either. Sorry chap

Hopefully someone else will give a good answer because my display is a bit messed up to, which is why i subscribed to this thread. I am still diggin around elsewhere and will let you know if i find anything that might be useful. Ahh, the Community Documentation might help
https://help.ubuntu.com/community/Signpost
but i am poking around in the solved answers database. Lets see who finds something good first. please let me know what you are tying before you try it as i might be able to spot the way that fixed this for me last few times.

Err on a slightly unrelated note have you run through the medibuntu page to sort the multimedia issues?
https://help.ubuntu.com/community/Medibuntu
this usually lays the ground-work for dealing with all sorts of multimedia stuff and installs the codecs and things too.

Good luck and regards from
Tom :)

Revision history for this message
Benjamin (bbenja) said :
#5

Good news people!

As Tom said on his second post, there is no xorg.conf file in versions 9.10 and 10.04. But here (https://help.ubuntu.com/community/Video) I fund a way to create one and use it.

After creating a xorg.conf file, I tried peters solution, it did not work, but I am not sure where to paste that piece of code either (I tried at the last part of the file).

Lets keep on trying.

Regards,
Benjamin.

Revision history for this message
Tom (tom6) said :
#6

Hi :)

Spooky, i found that page and then opened this question to paste it into here just to find you had already done that :))

I am wondering whether there is any mileage in finding out about the xorg.conf.d directory/folder

cd /usr/lib/X11/xorg.conf.d

which looks vaguely reminiscent of the 'new' grub2 layout which i also don't understand yet! I have a feeling this is the key to getting this working
Good luck and regards from
Tom :)

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